92 lines
2.4 KiB
C
92 lines
2.4 KiB
C
/* $Id$ */
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/* Copyright (C) 1998-99 Martin Baulig
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This file is part of LibGTop 1.0.
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Contributed by Martin Baulig <martin@home-of-linux.org>, April 1998.
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LibGTop is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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LibGTop is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with LibGTop; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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*/
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#include <glibtop.h>
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#include <glibtop/procmem.h>
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#include <glibtop_private.h>
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static const unsigned long _glibtop_sysdeps_proc_mem =
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(1 << GLIBTOP_PROC_MEM_VSIZE) + (1 << GLIBTOP_PROC_MEM_SIZE) +
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(1 << GLIBTOP_PROC_MEM_RESIDENT) + (1 << GLIBTOP_PROC_MEM_SHARE) +
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(1 << GLIBTOP_PROC_MEM_RSS) + (1 << GLIBTOP_PROC_MEM_RSS_RLIM);
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#ifndef LOG1024
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#define LOG1024 10
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#endif
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/* these are for getting the memory statistics */
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static int pageshift; /* log base 2 of the pagesize */
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/* define pagetok in terms of pageshift */
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#define pagetok(size) ((size) << pageshift)
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/* Init function. */
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void
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glibtop_init_proc_mem_s (glibtop *server)
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{
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register int pagesize;
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server->sysdeps.proc_mem = _glibtop_sysdeps_proc_mem;
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/* get the page size with "getpagesize" and calculate pageshift. */
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pagesize = getpagesize ();
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pageshift = 0;
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while (pagesize > 1) {
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pageshift++;
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pagesize >>= 1;
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}
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}
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/* Provides detailed information about a process. */
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void
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glibtop_get_proc_mem_s (glibtop *server, glibtop_proc_mem *buf,
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pid_t pid)
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{
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libgtop_proc_mem_t proc_mem;
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memset (buf, 0, sizeof (glibtop_proc_mem));
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if (glibtop_get_proc_data_proc_mem_s (server, &proc_mem, pid))
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return;
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buf->vsize = proc_mem.segment.vsize;
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buf->size = proc_mem.size;
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buf->resident = proc_mem.resident;
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buf->share = proc_mem.share;
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buf->rss = proc_mem.rss;
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buf->rss_rlim = proc_mem.rlim;
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buf->vsize <<= pageshift;
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buf->size <<= pageshift;
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buf->resident <<= pageshift;
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buf->share <<= pageshift;
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buf->flags = _glibtop_sysdeps_proc_mem;
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}
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